Kihnu Lighthouse is a lighthouse located in Kihnu, an island in the northern Gulf of Riga in Pärnu County; in Estonia.
The lighthouse was prefabricated in England; and assembled in 1865. The lighthouse uses a Fresnel lens, with the lighthouse's structure made out of tapered cast iron, painted white with the lantern dome painted in red. The lighthouse has a glare configuration of: two 1.5 s glares every 12 s.